Band-cutter and feeder.



A. DODD. BAND CUTTER AND FEEDER. APPLICATION FILED NOV. 25, 1911.

Patented June 18, 1912.

APH CO WASHING'IDN ARTHUR DODD, OF HOWARD TOWNSHIP, CASS COUNTY, MICHIGAN.

BAND-CUTTER AND FEEDER.

Specification of Letters Patent.

Patented June 18, 1912. Serial No. 662,335.

Application filed November 25, 1911.

To all whom z'tmay concern:

Be it known that I, ARTHUR DoDn, a citizen of the United States, residing in the township of Howard, county of Cass, State of Michigan, have invented certain new and useful Improvements in Band-Cutters and Feeders, of which the following is a specification. 1

This invention relates to improvements in band cutters and feeders.

The main objects of this invention are, first, to provide an improved band cutter and feeder for threshing machines in which the feeding begins only when the speed of the machine exceeds a predetermined rate and is automatically stopped when the speed of the machine falls below such rate. Secend, to provide an improved band cutter and feeder having these advantages which is very simple in structure, durable and not likely to get out of repair.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claim.

A structure which is a preferred em bodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a detail vertical section of a structure embodying the features of my invention taken on a line corresponding to line 11 of Fig. II, the parts being shown largely in conventional form. Fig. II is a detail plan view of the parts appearing in Fig. I. Fig. III is a detail section taken on a line corresponding to line 33 of Fig. II, showing structural details of the control mechanism. Fig. IV is a detail section taken on a line corresponding to line 44 of Fig. III, the shaft 3 being shown in full lines.

In the drawing, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, 1 represents the body of the separator. This is shown in conventional form and only such a portion thereof as is necessary to show the coacting relation of my improvements with the other parts of the machine.

The cutter knives 2 are mounted upon the shaft 3 to revolve therewith; The grain is carried to the cutters by the conveyer 4 and from the cutters to the cylinder, not lllustrated, by the conveyers 5 and 6. The conveyers are shown mainly in conventional form as consisting of aprons 7 with cleats 8 thereon. These conveyers constitute the feed means in the structure illustrated. a

The shaft 3 is provided with a driving pulley 9. The feed conveyers are driven through the pulley 10 revolubly mounted on the shaft 3. Connected to this pulley is a star ratchet wheel 11. Secured to the shaft 3 to revolve therewith, is an arm 12 on which a pawl 13 is pivotally mounted to coact with the ratchet wheel 1.1. This pawl 13 is provided with a curved weight arm 14: on which the weight 15 is adjustably mounted.

A spring 16 is provided for the pawl, the spring being supported by the rod 17 which is pivotally mounted on the arm 12 and slidably arranged through the ear 18 on the pawl.

The tension of the spring is adjusted by means of the nut 19 threaded upon the rod 17. The nut 20 on the rod serves as a stop to limit the outward swing of the pawl. When the speed of the machine is below a predetermined rate, the pawl 13 does not engage the ratchet wheel. When the speed exceeds this rate, the pawl is thrown into position to engage the ratchet wheel and the pulley 10 thus connected with the shaft. The star ratchet wheel is used in this connection on account of the great strength of its teeth and also so that the pawl freely and quickly engages and disengages therefrom.

The pulley 10 is connected to the driving shaft 21 of the conveyor 6 by means of the belt 22. The shaft 23 of the conveyor is connected to the shaft 21 by means of the belt 2 1 and its pulleys. The shaft 25 of the conveyer 4 is connected to the shaft 23 by means of the belt 26. These driving connections for the conveyers and the conveyers themselves may be of any suitable type for the purpose. In use, the grain is thrown upon the conveyor 4 which starts only when the speed of the machine exceeds a predetermined rate and is carried thereby to the cutters and after the bands are out is delivered by the conveyers 5 and 6 to the cylinder. Should the speed fall below the predetermined rate, the feed is automatically stopped.

I have illustrated and described my improvements, as stated, only in connection with such parts as are advantageous in v illustrating the application of the invention.

My improvements can be greatly varied in structural details, but as such variations will no doubt suggest themselves to those skilled in the art to which this invention relates, I have not attempted to illustrate or describe the same herein.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

In a band cutter and feeder, the combination of a cutter andcutter shaft with drivarm to cooperate with said ratchet wheel I having an arm extension; a weight carried on sand arm; and a tension spring tendlng to hold said pawl out of engagement with said ratchet wheel and resist the centrifugal action of said Weight, coaoting as specified. In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

ARTHUR DODD. [L. s.] Witnesses:

ANNA M. DOUMALL, SrENoER OSTRANDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

